Home / 5,531,642,893.08-7,628,842,865.19-3,920,911,947.45

Finding the Fourth Proportional to 5,531,642,893.08, 7,628,842,865.19 and 3,920,911,947.45

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Solution

The fourth proportional to 5,531,642,893.08, 7,628,842,865.19 and 3,920,911,947.45 is: 5,407,438,931.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531,642,893.08 : 7,628,842,865.19 = 3,920,911,947.45 : x
  2. Step 2: Convert to fraction form
    5,531,642,893.08/7,628,842,865.19 = 3,920,911,947.45/x
  3. Step 3: Cross multiply
    5,531,642,893.08x = 7,628,842,865.19 × 3,920,911,947.45
  4. Step 4: Simplify right side
    5,531,642,893.08x = 29,912,021,135,342,157,824
  5. Step 5: Solve for x
    x = 29,912,021,135,342,157,824/5,531,642,893.08
  6. Step 6: Final answer
    x = 5,407,438,931.53

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.